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All Journal AGROLOGIA : Jurnal Ilmu Budidaya Tanaman
Victor G Siahaya
Unknown Affiliation
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Environmental Science

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Identifikasi Lalat Buah (Bactrocera spp) Di Chili, Bitter Melon, Jambu Dan Jambu Bol Di Kota Ambon Tariyani Tariyani; John A Patty; Victor G Siahaya
Agrologia Vol 2, No 1 (2013): Agrologia: Jurnal Ilmu Budidaya Tanaman
Publisher : Faculty of Agriculture, Pattimura University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30598/a.v2i1.281

Abstract

Fruit flies (Diptera: Tephritidae) are important pests of horticultural crops with the intensity of their attacks can achieve 100%.  The control by quarantine regulations and the use of attractants will be more successful when the information about the species that attack horticultural crops has been known clearly. This study aimed to identify the species of fruit fly that attack pepper (Capsicum annum), bitter melon, guava and guava bol and to know the number and sex ratio of fruit fly pests. The method used was the survey methods, by taking/collecting pepper, bitter melon, guava and guava bol which contained fruit fly attack symptoms, maintained until it was discovered in the imago, later it was identified. Based on the results of the study, we found that fruit flies that attack the chili was B. papaya, in bitter melon was B. cucurbitae, in bool guava fruit and guava was B. Albistrigata. The number of fruit flies in chili was 21, in bitter melon was176, 89 in bol guava, and in guava was 90. Sex ratio in chili fruit flies (1:1), bitter melon (1:1), guava bol (1:1) and guava (2:1).
Uji Ekstrak Daun Pepaya (Carica Papaya) Terhadap Larva Plutella xylostella (Lepidoptera: Plutellidae) Victor G Siahaya; Ria Y Rumthe
Agrologia Vol 3, No 2 (2014)
Publisher : Faculty of Agriculture, Pattimura University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30598/a.v3i2.251

Abstract

Plutella xylostella L. (Lepidoptera: Plutellidae) is one of the major pests on chinese cabbage (Brassica pekinensis). It damage the  2-6 week old plants. Larvae damage  crops by biting, chewing and then eating the lower surface of the leaves. The leaves will become transparent white, severe damage leaves behind only leaf bone. Papaya leaf (Carica papaya) could be used as a pesticide for crops because it contains substances that can inhibit eating even to kill insects pests. The purpose of this study was to verify the efficacy of  the papaya leaf extract against Plutella xylostella. The study was conducted in the laboratory of Plant Pests Faculty of Agriculture, Pattimura University. The design used was a completely randomized design with four papaya leaf extract concentration at 3 instar larvae through the  contact and stomach poison test. Observations were made on the early symptoms of poisoning, the percentage of larval mortality, and further Plutella xylostella stadium. The results showed that the highest mortality in the treatment of stomach and contact poison was occured at a concentration of 40 g/100 ml of water by 100%, while the lowest mortality at a concentration of 10 g / 100 ml of water, respectively by 35% and 20%.
Co-Authors John A Patty Ria Y Rumthe Tariyani Tariyani